But @Coolasice, it does support CDMA. This is the OnePlus 5 not one of the older ones.
https://oneplus.net/5/specs
Bands
FDD LTE: Band 1/2/3/4/5/7/8/12/17/18/19/20/25/26/28/29/30/66
TDD LTE: Band 38/39/40/41
TD-SCDMA: Band 34/39
UMTS(WCDMA): Band 1/2/4/5/8
CDMA EVDO: BC0
GSM: 850/900/1800/1900 MHz
They even state on the OnePlus site that it is compatible with US Cellular.
But, I know USC can be picky. If they're not going to allow it, I'll just move my number to another carrier that will.